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<FONT color="green">001</FONT>    package org.hackystat.ui.sensordatabrowser.client;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import java.util.ArrayList;<a name="line.3"></a>
<FONT color="green">004</FONT>    import java.util.Iterator;<a name="line.4"></a>
<FONT color="green">005</FONT>    <a name="line.5"></a>
<FONT color="green">006</FONT>    import org.hackystat.ui.sensordatabrowser.client.common.Event;<a name="line.6"></a>
<FONT color="green">007</FONT>    import org.hackystat.ui.sensordatabrowser.client.common.EventItemsPage;<a name="line.7"></a>
<FONT color="green">008</FONT>    <a name="line.8"></a>
<FONT color="green">009</FONT>    import com.google.gwt.user.client.rpc.AsyncCallback;<a name="line.9"></a>
<FONT color="green">010</FONT>    import com.google.gwt.user.client.ui.ClickListener;<a name="line.10"></a>
<FONT color="green">011</FONT>    import com.google.gwt.user.client.ui.HorizontalPanel;<a name="line.11"></a>
<FONT color="green">012</FONT>    import com.google.gwt.user.client.ui.Image;<a name="line.12"></a>
<FONT color="green">013</FONT>    import com.google.gwt.user.client.ui.Label;<a name="line.13"></a>
<FONT color="green">014</FONT>    import com.google.gwt.user.client.ui.TreeItem;<a name="line.14"></a>
<FONT color="green">015</FONT>    import com.google.gwt.user.client.ui.Widget;<a name="line.15"></a>
<FONT color="green">016</FONT>    <a name="line.16"></a>
<FONT color="green">017</FONT>    /**<a name="line.17"></a>
<FONT color="green">018</FONT>     * This class represents one event of sensor data elements in the SDViewer display, an event is<a name="line.18"></a>
<FONT color="green">019</FONT>     * quantized to the the sensor data types occurring within one minute.<a name="line.19"></a>
<FONT color="green">020</FONT>     * @author David J. Nickles<a name="line.20"></a>
<FONT color="green">021</FONT>     */<a name="line.21"></a>
<FONT color="green">022</FONT>    public class EventTreeItem extends TreeItem implements ClickListener {<a name="line.22"></a>
<FONT color="green">023</FONT>    <a name="line.23"></a>
<FONT color="green">024</FONT>      private int count;<a name="line.24"></a>
<FONT color="green">025</FONT>      private boolean lazyLoad;<a name="line.25"></a>
<FONT color="green">026</FONT>      private Image rpcStatusImage;<a name="line.26"></a>
<FONT color="green">027</FONT>      private Session session;<a name="line.27"></a>
<FONT color="green">028</FONT>      private boolean memoryOpen;<a name="line.28"></a>
<FONT color="green">029</FONT>      private boolean memoryFireEvents;<a name="line.29"></a>
<FONT color="green">030</FONT>      private Event event;<a name="line.30"></a>
<FONT color="green">031</FONT>      private int oddoreven;<a name="line.31"></a>
<FONT color="green">032</FONT>      private EventItemsPage reqPage;<a name="line.32"></a>
<FONT color="green">033</FONT>      <a name="line.33"></a>
<FONT color="green">034</FONT>      /**<a name="line.34"></a>
<FONT color="green">035</FONT>       * Makes a new EventTreeItem representing this Event.<a name="line.35"></a>
<FONT color="green">036</FONT>       * @param event representing a grouping of sdt &amp; tool within a minute's span.<a name="line.36"></a>
<FONT color="green">037</FONT>       * @param oddoreven if the parent is odd or even for coloring<a name="line.37"></a>
<FONT color="green">038</FONT>       * @param session information. <a name="line.38"></a>
<FONT color="green">039</FONT>       */<a name="line.39"></a>
<FONT color="green">040</FONT>      public EventTreeItem(Event event, int oddoreven, Session session) {<a name="line.40"></a>
<FONT color="green">041</FONT>        this.session = session;<a name="line.41"></a>
<FONT color="green">042</FONT>        this.event = event;<a name="line.42"></a>
<FONT color="green">043</FONT>        this.reqPage = new EventItemsPage();<a name="line.43"></a>
<FONT color="green">044</FONT>        HorizontalPanel row1 = new HorizontalPanel();<a name="line.44"></a>
<FONT color="green">045</FONT>        this.rpcStatusImage = new Image(Images.WAIT_IMAGE);<a name="line.45"></a>
<FONT color="green">046</FONT>        this.rpcStatusImage.setPixelSize(15, 15);<a name="line.46"></a>
<FONT color="green">047</FONT>        this.rpcStatusImage.setVisible(false);<a name="line.47"></a>
<FONT color="green">048</FONT>        row1.add(this.rpcStatusImage);<a name="line.48"></a>
<FONT color="green">049</FONT>        Label label = new Label(event.getTitle());<a name="line.49"></a>
<FONT color="green">050</FONT>        label.setStyleName("gwt-TreeItem");<a name="line.50"></a>
<FONT color="green">051</FONT>        row1.add(label);<a name="line.51"></a>
<FONT color="green">052</FONT>        this.setWidget(row1);<a name="line.52"></a>
<FONT color="green">053</FONT>        this.count = 0;<a name="line.53"></a>
<FONT color="green">054</FONT>        this.lazyLoad = true;<a name="line.54"></a>
<FONT color="green">055</FONT>        this.oddoreven = oddoreven;<a name="line.55"></a>
<FONT color="green">056</FONT>        if (oddoreven % 2 == 0) {<a name="line.56"></a>
<FONT color="green">057</FONT>          addStyleName("gwt-TreeItem-outer-odd");<a name="line.57"></a>
<FONT color="green">058</FONT>        } <a name="line.58"></a>
<FONT color="green">059</FONT>        else {<a name="line.59"></a>
<FONT color="green">060</FONT>          addStyleName("gwt-TreeItem-even");<a name="line.60"></a>
<FONT color="green">061</FONT>        }<a name="line.61"></a>
<FONT color="green">062</FONT>        addItem(new TreeItem("place-holder"));<a name="line.62"></a>
<FONT color="green">063</FONT>      }<a name="line.63"></a>
<FONT color="green">064</FONT>      <a name="line.64"></a>
<FONT color="green">065</FONT>      /**<a name="line.65"></a>
<FONT color="green">066</FONT>       * Gets the event associated with this EventTreeItem.<a name="line.66"></a>
<FONT color="green">067</FONT>       * @return the event.<a name="line.67"></a>
<FONT color="green">068</FONT>       */<a name="line.68"></a>
<FONT color="green">069</FONT>      public Event getEvent() {<a name="line.69"></a>
<FONT color="green">070</FONT>        return this.event;<a name="line.70"></a>
<FONT color="green">071</FONT>      }<a name="line.71"></a>
<FONT color="green">072</FONT>      <a name="line.72"></a>
<FONT color="green">073</FONT>      /**<a name="line.73"></a>
<FONT color="green">074</FONT>       * Gets the count of new elements.<a name="line.74"></a>
<FONT color="green">075</FONT>       * @return the count of new elements.<a name="line.75"></a>
<FONT color="green">076</FONT>       */<a name="line.76"></a>
<FONT color="green">077</FONT>      public int size() {<a name="line.77"></a>
<FONT color="green">078</FONT>        return this.count;<a name="line.78"></a>
<FONT color="green">079</FONT>      }<a name="line.79"></a>
<FONT color="green">080</FONT>    <a name="line.80"></a>
<FONT color="green">081</FONT>      /**<a name="line.81"></a>
<FONT color="green">082</FONT>       * This method sets the TreeItem state.<a name="line.82"></a>
<FONT color="green">083</FONT>       * @param open true if the tree branch is to be expanded, false if collapsed.<a name="line.83"></a>
<FONT color="green">084</FONT>       * @param fireEvents true if subtrees should be notified.<a name="line.84"></a>
<FONT color="green">085</FONT>       */<a name="line.85"></a>
<FONT color="green">086</FONT>      public void setState(boolean open, boolean fireEvents) {<a name="line.86"></a>
<FONT color="green">087</FONT>        // if has opened before then return and do nothing (you have already loaded the children)<a name="line.87"></a>
<FONT color="green">088</FONT>        if (this.lazyLoad &amp;&amp; open) {<a name="line.88"></a>
<FONT color="green">089</FONT>          this.rpcStatusImage.setVisible(open);<a name="line.89"></a>
<FONT color="green">090</FONT>          rpcGetEventItems();<a name="line.90"></a>
<FONT color="green">091</FONT>          this.memoryOpen = open;<a name="line.91"></a>
<FONT color="green">092</FONT>          this.memoryFireEvents = fireEvents;<a name="line.92"></a>
<FONT color="green">093</FONT>        } <a name="line.93"></a>
<FONT color="green">094</FONT>        else {<a name="line.94"></a>
<FONT color="green">095</FONT>          super.setState(open, fireEvents);<a name="line.95"></a>
<FONT color="green">096</FONT>        }<a name="line.96"></a>
<FONT color="green">097</FONT>      }<a name="line.97"></a>
<FONT color="green">098</FONT>      <a name="line.98"></a>
<FONT color="green">099</FONT>      /**<a name="line.99"></a>
<FONT color="green">100</FONT>       * This method sets the row style to odd or even style.<a name="line.100"></a>
<FONT color="green">101</FONT>       * @param item to stylize.<a name="line.101"></a>
<FONT color="green">102</FONT>       */<a name="line.102"></a>
<FONT color="green">103</FONT>      private void setRowStyle(TreeItem item) {<a name="line.103"></a>
<FONT color="green">104</FONT>        if ((++this.oddoreven) % 2 == 0) {<a name="line.104"></a>
<FONT color="green">105</FONT>          item.addStyleName("gwt-TreeItem-inner-odd");<a name="line.105"></a>
<FONT color="green">106</FONT>        } <a name="line.106"></a>
<FONT color="green">107</FONT>        else {<a name="line.107"></a>
<FONT color="green">108</FONT>          item.addStyleName("gwt-TreeItem-even");<a name="line.108"></a>
<FONT color="green">109</FONT>        }<a name="line.109"></a>
<FONT color="green">110</FONT>      }<a name="line.110"></a>
<FONT color="green">111</FONT>      <a name="line.111"></a>
<FONT color="green">112</FONT>      /**<a name="line.112"></a>
<FONT color="green">113</FONT>       * This method updates the page data structure for the next page fetch.<a name="line.113"></a>
<FONT color="green">114</FONT>       */<a name="line.114"></a>
<FONT color="green">115</FONT>      private void advancePage() {<a name="line.115"></a>
<FONT color="green">116</FONT>        this.reqPage.setDataList(null);<a name="line.116"></a>
<FONT color="green">117</FONT>        this.reqPage.setPageNumber(this.reqPage.getPageNumber() + 1);<a name="line.117"></a>
<FONT color="green">118</FONT>      }<a name="line.118"></a>
<FONT color="green">119</FONT>      <a name="line.119"></a>
<FONT color="green">120</FONT>      /**<a name="line.120"></a>
<FONT color="green">121</FONT>       * Receive the list of sensor data and insert in place of the hrefs.<a name="line.121"></a>
<FONT color="green">122</FONT>       * @param page of sensor data.<a name="line.122"></a>
<FONT color="green">123</FONT>       */<a name="line.123"></a>
<FONT color="green">124</FONT>      public void insert(EventItemsPage page) {<a name="line.124"></a>
<FONT color="green">125</FONT>        if (page.getPageNumber() == 0) {<a name="line.125"></a>
<FONT color="green">126</FONT>          removeItems();<a name="line.126"></a>
<FONT color="green">127</FONT>        }<a name="line.127"></a>
<FONT color="green">128</FONT>        else {<a name="line.128"></a>
<FONT color="green">129</FONT>          this.removeItem(getChild(this.getChildCount() - 1));<a name="line.129"></a>
<FONT color="green">130</FONT>        }<a name="line.130"></a>
<FONT color="green">131</FONT>        if (Boolean.TRUE.toString().equals(page.getStatus())) {<a name="line.131"></a>
<FONT color="green">132</FONT>          for (int i = 0; i &lt; page.getDataList().size(); ++i) {<a name="line.132"></a>
<FONT color="green">133</FONT>            /** @gwt.typeArgs innerList &lt;java.lang.String&gt; */<a name="line.133"></a>
<FONT color="green">134</FONT>            ArrayList innerList = (ArrayList)page.getDataList().get(i);<a name="line.134"></a>
<FONT color="green">135</FONT>            TreeItem item = new TreeItem((String)innerList.get(0));<a name="line.135"></a>
<FONT color="green">136</FONT>            setRowStyle(item);<a name="line.136"></a>
<FONT color="green">137</FONT>            Iterator it = innerList.listIterator(1);<a name="line.137"></a>
<FONT color="green">138</FONT>            while (it.hasNext()) {<a name="line.138"></a>
<FONT color="green">139</FONT>              item.addItem((String)it.next());<a name="line.139"></a>
<FONT color="green">140</FONT>            }<a name="line.140"></a>
<FONT color="green">141</FONT>            addItem(item);<a name="line.141"></a>
<FONT color="green">142</FONT>          }<a name="line.142"></a>
<FONT color="green">143</FONT>          this.reqPage = page;<a name="line.143"></a>
<FONT color="green">144</FONT>          if (page.isMore()) {<a name="line.144"></a>
<FONT color="green">145</FONT>            advancePage();<a name="line.145"></a>
<FONT color="green">146</FONT>            Label label = new Label("Get next " + EventItemsPage.PAGESIZE + " items.");<a name="line.146"></a>
<FONT color="green">147</FONT>            label.addStyleName(Styles.HYPERLINKLABEL);<a name="line.147"></a>
<FONT color="green">148</FONT>            TreeItem item = addItem(label);<a name="line.148"></a>
<FONT color="green">149</FONT>            label.addClickListener(this);<a name="line.149"></a>
<FONT color="green">150</FONT>            setRowStyle(item);<a name="line.150"></a>
<FONT color="green">151</FONT>            --this.oddoreven;<a name="line.151"></a>
<FONT color="green">152</FONT>          }<a name="line.152"></a>
<FONT color="green">153</FONT>          this.rpcStatusImage.setVisible(false);<a name="line.153"></a>
<FONT color="green">154</FONT>          this.lazyLoad = false;<a name="line.154"></a>
<FONT color="green">155</FONT>          super.setState(this.memoryOpen, this.memoryFireEvents);<a name="line.155"></a>
<FONT color="green">156</FONT>        }<a name="line.156"></a>
<FONT color="green">157</FONT>        else {<a name="line.157"></a>
<FONT color="green">158</FONT>          TreeItem item = addItem("Error reported: " + page.getStatus());<a name="line.158"></a>
<FONT color="green">159</FONT>          setRowStyle(item);<a name="line.159"></a>
<FONT color="green">160</FONT>        }<a name="line.160"></a>
<FONT color="green">161</FONT>      }<a name="line.161"></a>
<FONT color="green">162</FONT>    <a name="line.162"></a>
<FONT color="green">163</FONT>      /**<a name="line.163"></a>
<FONT color="green">164</FONT>       * This method performs an asynchronous remote call out to the sensor data browser service<a name="line.164"></a>
<FONT color="green">165</FONT>       * to get a list of days with data.<a name="line.165"></a>
<FONT color="green">166</FONT>       */ <a name="line.166"></a>
<FONT color="green">167</FONT>      public void rpcGetEventItems() {<a name="line.167"></a>
<FONT color="green">168</FONT>        if (session.getUser() != null) {<a name="line.168"></a>
<FONT color="green">169</FONT>          RPCServiceFactory.getInstance().getService().getEventItems(session.getSensorbaseHost(), <a name="line.169"></a>
<FONT color="green">170</FONT>            Session.DEFAULT, session.getUser(), session.getPassword(), this.event, this.reqPage,<a name="line.170"></a>
<FONT color="green">171</FONT>            new AsyncCallback()<a name="line.171"></a>
<FONT color="green">172</FONT>            {<a name="line.172"></a>
<FONT color="green">173</FONT>              public void onSuccess(Object result) {<a name="line.173"></a>
<FONT color="green">174</FONT>                insert((EventItemsPage)result);<a name="line.174"></a>
<FONT color="green">175</FONT>              }<a name="line.175"></a>
<FONT color="green">176</FONT>    <a name="line.176"></a>
<FONT color="green">177</FONT>              public void onFailure(Throwable caught) {<a name="line.177"></a>
<FONT color="green">178</FONT>                if (caught instanceof com.google.gwt.user.client.rpc.InvocationException) {<a name="line.178"></a>
<FONT color="green">179</FONT>                  session.log(RPCServiceFactory.PRCERRORNAME, "Cannot invoke method on servlet.");<a name="line.179"></a>
<FONT color="green">180</FONT>                } <a name="line.180"></a>
<FONT color="green">181</FONT>                else {<a name="line.181"></a>
<FONT color="green">182</FONT>                  session.log(RPCServiceFactory.PRCERRORNAME, caught.toString());<a name="line.182"></a>
<FONT color="green">183</FONT>                }<a name="line.183"></a>
<FONT color="green">184</FONT>              }<a name="line.184"></a>
<FONT color="green">185</FONT>            });<a name="line.185"></a>
<FONT color="green">186</FONT>        }<a name="line.186"></a>
<FONT color="green">187</FONT>      }<a name="line.187"></a>
<FONT color="green">188</FONT>    <a name="line.188"></a>
<FONT color="green">189</FONT>      /**<a name="line.189"></a>
<FONT color="green">190</FONT>       * This method responds to clicks on the get more data items link.<a name="line.190"></a>
<FONT color="green">191</FONT>       * @param sender the widget clicked.<a name="line.191"></a>
<FONT color="green">192</FONT>       */<a name="line.192"></a>
<FONT color="green">193</FONT>      public void onClick(Widget sender) {<a name="line.193"></a>
<FONT color="green">194</FONT>        this.removeItem(getChild(this.getChildCount() - 1)); // remove the more 'hyperlink'<a name="line.194"></a>
<FONT color="green">195</FONT>        HorizontalPanel hp = new HorizontalPanel();<a name="line.195"></a>
<FONT color="green">196</FONT>        Image rpcWait = new Image(Images.WAIT_IMAGE);<a name="line.196"></a>
<FONT color="green">197</FONT>        rpcWait.setPixelSize(15, 15);<a name="line.197"></a>
<FONT color="green">198</FONT>        hp.add(rpcWait);<a name="line.198"></a>
<FONT color="green">199</FONT>        Label labelWait = new Label("Fetching next " + EventItemsPage.PAGESIZE + " items.");<a name="line.199"></a>
<FONT color="green">200</FONT>        hp.setStyleName(Styles.ACTIVELINKLABEL);<a name="line.200"></a>
<FONT color="green">201</FONT>        hp.add(labelWait);<a name="line.201"></a>
<FONT color="green">202</FONT>        this.addItem(hp); // add the rpcWaiting panel<a name="line.202"></a>
<FONT color="green">203</FONT>        rpcGetEventItems();<a name="line.203"></a>
<FONT color="green">204</FONT>      }<a name="line.204"></a>
<FONT color="green">205</FONT>    }<a name="line.205"></a>




























































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